CN112831797A - Composite electrolytic salt and electrolytic mother liquor prepared by using same - Google Patents
Composite electrolytic salt and electrolytic mother liquor prepared by using same Download PDFInfo
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- CN112831797A CN112831797A CN202011644519.5A CN202011644519A CN112831797A CN 112831797 A CN112831797 A CN 112831797A CN 202011644519 A CN202011644519 A CN 202011644519A CN 112831797 A CN112831797 A CN 112831797A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
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Abstract
The application relates to the technical field of hypochlorous acid production, in particular to a composite electrolytic salt and an electrolytic mother liquor prepared by utilizing the composite electrolytic salt. A composite electrolytic salt is prepared from the following raw materials: sodium chloride and a stabilizer, wherein the stabilizer is sodium carbonate, sodium bicarbonate or a combination of the two. An electrolytic mother liquor prepared by using compound electrolytic salt is prepared from the following raw materials: water, sodium chloride and a stabilizer, wherein the stabilizer is sodium carbonate, sodium bicarbonate or a combination of the two. The electrolysis mother liquor product is electrolyzed to obtain hypochlorous acid decomposition liquid with weak pH value, high hypochlorous acid component content and good stability. The product is used as civil electrolytic mother liquor, is applied to preparing hypochlorous acid aqueous solution by electrolysis with a diaphragm method, and has the following advantages: the electrolyte is not required to be prepared by a user, so that the use of the electrolyte is convenient for consumers; avoid the user to prepare the error and influence the quality of hypochlorous acid aqueous solution.
Description
Technical Field
The application relates to the technical field of hypochlorous acid production, in particular to a composite electrolytic salt and an electrolytic mother liquor prepared by utilizing the composite electrolytic salt.
Background
Hypochlorous acid is used as a disinfectant, and the disinfection efficiency is 80 times higher than that of sodium hypochlorite, so that the low-concentration hypochlorous acid can achieve the effect of high-efficiency sterilization.
When hypochlorous acid is prepared, a diaphragm (an ionic membrane or a microporous or meshed isolating sheet) electrolysis scheme is commonly used, namely sodium chloride is electrolyzed, and chlorine is obtained at the positive electrode and hydrolyzed into hypochlorous acid and hydrochloric acid. The application of the electrolysis scheme is more convenient and faster in production by using hypochlorous acid.
Although the production of above-mentioned prior art makes hypochlorous acid comparatively convenient, but brings two problems again simultaneously: 1. the stability of hypochlorous acid by an electrolysis method is poor; 2. the pH of the electrolyzed hypochlorous acid is low and the acidity is too strong.
Disclosure of Invention
In order to solve the problems of poor stability of hypochlorous acid prepared by an electrolytic method in the prior art, low pH of electrolytic hypochlorous acid and strong acidity which influence the quality of the prepared hypochlorous acid, the first purpose of the application is to provide a compound electrolytic salt, the electrolytic salt is prepared into electrolytic mother liquor, and the hypochlorous acid decomposition liquid with weak pH value, high content of hypochlorous acid components and good stability can be obtained by electrolysis.
The first purpose of the application is realized by the following technical scheme:
a composite electrolytic salt is prepared from the following raw materials: sodium chloride and a stabilizer.
By adopting the technical scheme, the composite electrolytic salt can be prepared in advance and packaged into small bags, so that the composite electrolytic salt is convenient to sell and use by consumers, the operation of preparing the hypochlorous acid disinfectant through electrolysis is simpler, and the market popularization is facilitated; the stabilizer in the electrolytic salt can improve the stability of the hypochlorous acid prepared by an electrolytic method, can reduce the pH value of the electrolytic hypochlorous acid, and obtains the hypochlorous acid decomposition liquid with weak pH value, high hypochlorous acid component content and good stability.
Preferably, the stabilizing agent is one of carbonate and bicarbonate or a combination of the two in any proportion.
By adopting the technical scheme, the carbonate in the carbonate can neutralize hydrochloric acid generated by reaction; the bicarbonate in the bicarbonate can also neutralize hydrochloric acid generated by the reaction, prevent hypochlorite from combining with sodium ions to form hypochlorous acid, ensure the quality of the hypochlorous acid decomposition liquid, adjust the pH value of the hypochlorous acid decomposition liquid and obtain the hypochlorous acid decomposition liquid with good stability.
The second purpose of the invention is to provide an electrolytic mother liquor prepared by using compound electrolytic salt, the electrolytic mother liquor can be directly used for electrolysis, and hypochlorous acid decomposition liquor with weak pH value, high hypochlorous acid component content and good stability can be obtained.
In order to achieve the second object, the invention provides the following technical scheme:
an electrolytic mother liquor prepared by using compound electrolytic salt is prepared from the following raw materials: the feed is prepared from the following raw materials in parts by weight: 100 parts of water, 0.1-10 parts of sodium chloride and 0.05-21.5 parts of carbonate.
By adopting the technical scheme, carbonate in the sodium carbonate can neutralize hydrochloric acid generated by reaction to prevent hypochlorite from combining with sodium ions to form hypochlorous acid, so that the quality of the hypochlorous acid decomposition liquid is ensured, the pH value of the hypochlorous acid decomposition liquid is adjusted, and the hypochlorous acid decomposition liquid with good stability is obtained; in addition, the sodium ions have small stimulation to the skin, and the prepared hypochlorous acid decomposition liquid has good skin-friendly property; by adopting the electrolyte prepared by the above steps, sodium chloride is electrolyzed on the positive electrode side, 1 part of the electrolyte generates 0.5 part of chlorine, 0.5 part of hypochlorous acid and 0.5 part of hydrochloric acid are generated after 0.5 part of the chlorine is hydrolyzed, and the hydrochloric acid is combined with carbonate, so that the combination of hypochlorite radicals and sodium ions is prevented, more hypochlorous acid is generated, the generation of sodium hypochlorite is reduced, and weak pH value acidity and high hypochlorous acid component content can be obtained; in addition, the requirement on the electrolysis process is low, and the product stability is good.
Preferably, the molar ratio of the carbonate to the sodium chloride is (0.06-2) to 1.
By adopting the technical scheme, the hypochlorous acid generated by electrolysis is ensured to be more and the stability is better.
Preferably, the feed additive is prepared from the following raw materials in parts by weight: 100 parts of water, 0.1-10 parts of sodium chloride and 0.1-9.6 parts of sodium bicarbonate.
By adopting the technical scheme, the bicarbonate in the bicarbonate can also neutralize the generated hydrochloric acid to prevent hypochlorite from combining with sodium ions to form hypochlorous acid, so that the quality of the hypochlorous acid decomposition liquid is ensured, the pH value of the hypochlorous acid decomposition liquid is adjusted, the hypochlorous acid decomposition liquid with good stability is obtained, the stimulation of the sodium ions to the skin is small, and the prepared hypochlorous acid decomposition liquid has good skin-friendly property; the electrolyte prepared by the method is adopted to carry out electrolysis, so that the electrolyte can obtain the electrolyte with weak pH value and high hypochlorous acid component content.
Preferably, the molar ratio of sodium bicarbonate to sodium chloride is (0.12-2) to 1.
By adopting the technical scheme, the hypochlorous acid generated by electrolysis is ensured to be more and the stability is better.
Preferably, the feed additive is prepared from the following raw materials in parts by weight: 100 parts of water, 0.1-10 parts of sodium chloride and 0.05-9.6 parts of a stabilizer; the stabilizer is a mixture of sodium bicarbonate and sodium bicarbonate.
By adopting the technical scheme, the carbonate in the carbonate can neutralize hydrochloric acid generated by reaction; the bicarbonate in the bicarbonate can also neutralize hydrochloric acid generated by the reaction, prevent hypochlorite from combining with sodium ions to form hypochlorous acid, ensure the quality of the hypochlorous acid decomposition liquid, adjust the pH value of the hypochlorous acid decomposition liquid and obtain the hypochlorous acid decomposition liquid with good stability.
Preferably, the feed additive is prepared from the following raw materials in parts by weight: 0.05-5.5 parts of sodium carbonate and 0.1-9.6 parts of sodium bicarbonate.
Preferably, the molar ratio of the sum of the bicarbonate and carbonate concentrations in the stabilizer to the chloride concentration in the sodium chloride is (0.06-2): 1.
by adopting the technical scheme, the hypochlorous acid generated by electrolysis is ensured to be more and the stability is better.
Preferably, the product is used as an electrolysis mother solution and is applied to the electrolysis preparation of hypochlorous acid aqueous solution by a diaphragm method and a non-diaphragm method.
By adopting the technical scheme, a user does not need to prepare the electrolyte, so that the electrolyte is convenient for a consumer to use; avoid the user to prepare the error and influence the quality of hypochlorous acid aqueous solution.
In summary, the present application has the following advantages:
1. the composite electrolytic mother liquor is electrolyzed to obtain hypochlorous acid decomposition liquid with weak pH value, high content of hypochlorous acid component and good stability.
2. The composite electrolytic mother liquor is used as a civil electrolytic mother liquor, is applied to the preparation of hypochlorous acid aqueous solution by electrolysis with a diaphragm method, does not need a user to prepare electrolyte, and is convenient for consumers to use; avoid the user to prepare the quality that the error influences hypochlorous acid aqueous solution.
Detailed Description
The present application will be described in further detail with reference to examples.
Raw materials
| Raw materials | Specification of | Manufacturer of the product |
| Sodium chloride | AR, 99.5% or more. | Aladdin group |
| Sodium carbonate | AR, 99.5% or more | ZiboChun thin chemical Co Ltd |
| Sodium bicarbonate | Industrial grade | Jiangsu Qinghe chemical Co Ltd |
Preparation example
Preparation example 1: deionized water was prepared using a water purifier, and the conductivity of the prepared deionized water was measured to be 0.82. mu.S/cm.
Examples
Example 1
The composite electrolytic mother liquor and the application thereof disclosed by the application are prepared from the following raw materials in percentage by mass: 100 portions of sodium chloride, 0.02 portion of sodium carbonate and the balance of deionized water.
Example 2
Example 2 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 0.1 part of sodium carbonate and the balance of deionized water.
Example 3
Example 3 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 0.02 part of sodium bicarbonate and the balance of deionized water.
Example 4
Example 4 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 0.1 part of sodium carbonate, 0.1 part of sodium bicarbonate and the balance of deionized water.
Example 5
Example 5 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: in 100 parts, 1 part of sodium chloride, 0.2 part of sodium carbonate and the balance of deionized water.
Example 6
Example 6 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: in 100 parts, 1 part of sodium chloride, 1 part of sodium carbonate and the balance of deionized water.
Example 7
Example 7 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 0.2 part of sodium bicarbonate and the balance of deionized water.
Example 8
Example 8 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 0.5 part of sodium carbonate, 0.5 part of sodium bicarbonate and the balance of deionized water.
Example 9
Example 9 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 5 parts of sodium carbonate and the balance of deionized water.
Example 10
Example 10 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 10 parts of sodium carbonate and the balance of deionized water.
Example 11
Example 11 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: in 100 parts, 10 parts of sodium chloride, 2 parts of sodium bicarbonate and the balance of deionized water.
Example 12
Example 12 differs from example 1 in that: the composite material is prepared from the following raw materials in percentage by mass: 100 parts of sodium chloride, 5 parts of sodium carbonate, 5 parts of sodium bicarbonate and the balance of deionized water.
Comparative example
Comparative example 1
Comparative example 1 differs from example 1 in that: the material is prepared from the following raw materials in percentage by mass: of 100 parts, 0.1 part of sodium chloride, and the balance of deionized water of preparation example 1.
Comparative example 2
Comparative example 2 differs from example 1 in that: the material is prepared from the following raw materials in percentage by mass: of 100 parts, 1 part of sodium chloride, and the balance of deionized water of preparation example 1.
Comparative example 3
Comparative example 3 differs from example 1 in that: the material is prepared from the following raw materials in percentage by mass: of 100 parts, 10 parts of sodium chloride, and the balance of deionized water of preparation example 1.
Performance test
The electrolysis was carried out using a hypochlorous acid electrolyzer testing apparatus produced by Toshiba corporation, Hangzhou Zhi electromechanics Limited, China, with a mother liquor volume of 20ml, a finished liquor volume of 1L, an electrolysis voltage of 5V, and an electrolysis time of 15 minutes.
1. The hypochlorous acid decomposition liquids prepared in examples 1 to 12 and comparative example 3 were tested for the available chlorine content using an available chlorine meter.
The hypochlorous acid decomposition liquids prepared in examples 1 to 12 and comparative example 3 were tested for stability: the initial concentration of the initial hypochlorous acid decomposition solution was measured by an effective chlorine measuring instrument, and then the effective chlorine concentration of hypochlorous acid was measured for 12 hours, 72 hours, and 240 hours. The storage conditions are all 50 ℃, white PVC is bottled, and the bottle cap is sealed.
Test method
Table 1 shows the test parameters of examples 1 to 12 and comparative example 1
As can be seen from the combination of examples 1 to 12 and comparative examples 1 to 3 and Table 1, the hypochlorous acid component produced by electrolysis of the composite electrolyte prepared in the present application has good stability and the effective content is 65% or more of the initial amount after 10 days. The hypochlorous acid component generated by electrolysis of the composite electrolyte prepared in example 12 was stable and contained in an effective amount of 90.3% of the initial amount after 10 days. Carbonate in the carbonate can neutralize hydrochloric acid generated by the reaction, bicarbonate in the bicarbonate can also neutralize hydrochloric acid generated by the reaction, hypochlorite is prevented from being combined with sodium ions to form hypochlorous acid, the quality of the hypochlorous acid decomposition liquid is ensured, the pH value of the hypochlorous acid decomposition liquid is adjusted, and the hypochlorous acid decomposition liquid with good stability is obtained.
In conclusion, the hypochlorous acid decomposition liquid with weak pH value, high hypochlorous acid component content and good stability can be obtained by electrolyzing the product.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes in structure, shape and principle of the application are intended to be covered by the scope of protection of the application.
Claims (10)
1. A composite electrolytic salt, characterized in that: is prepared from the following raw materials: sodium chloride and a stabilizer.
2. A composite electrolytic salt according to claim 1, characterized in that: the stabilizer is one or two of carbonate and bicarbonate in any proportion.
3. An electrolytic mother liquor prepared by using the composite electrolytic salt of claims 1-2, which is characterized in that: the feed is prepared from the following raw materials in parts by weight: 100 parts of water, 0.1-10 parts of sodium chloride and 0.05-21.5 parts of carbonate.
4. The electrolytic mother liquor prepared by using the compound electrolytic salt as claimed in claim 3, which is characterized in that: the molar ratio of the carbonate to the sodium chloride is (0.06-2): 1.
5. an electrolytic mother liquor prepared by using the composite electrolytic salt of claims 1-2, which is characterized in that: the feed is prepared from the following raw materials in parts by weight: 100 parts of water, 0.1-10 parts of sodium chloride and 0.1-9.6 parts of sodium bicarbonate.
6. The electrolytic mother liquor prepared by using the compound electrolytic salt as claimed in claim 5, which is characterized in that: the molar ratio of sodium bicarbonate to sodium chloride is (0.12-2): 1.
7. an electrolytic mother liquor prepared by using the composite electrolytic salt of claims 1-2, which is characterized in that: the feed is prepared from the following raw materials in parts by weight: 100 parts of water, 0.1-10 parts of sodium chloride and 0.05-9.6 parts of a stabilizer; the stabilizer is a mixture of sodium bicarbonate and sodium bicarbonate.
8. Mixture of sodium carbonate and sodium bicarbonate according to claim 7, characterized in that: the feed is prepared from the following raw materials in parts by weight: 0.05-5.5 parts of sodium carbonate and 0.1-9.6 parts of sodium bicarbonate.
9. The electrolytic mother liquor prepared by using the compound electrolytic salt as claimed in claim 8, wherein: the molar ratio of the sum of the bicarbonate and carbonate concentrations in the stabilizer to the chloride ion concentration in the sodium chloride is (0.06-2): 1.
10. the electrolytic mother liquor prepared by using the compound electrolytic salt as claimed in claim 1, which is characterized in that: the product is used as an electrolytic mother solution and is applied to the electrolytic preparation of hypochlorous acid aqueous solution by a diaphragm method and a non-diaphragm method.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644519.5A CN112831797A (en) | 2020-12-31 | 2020-12-31 | Composite electrolytic salt and electrolytic mother liquor prepared by using same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011644519.5A CN112831797A (en) | 2020-12-31 | 2020-12-31 | Composite electrolytic salt and electrolytic mother liquor prepared by using same |
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| CN112831797A true CN112831797A (en) | 2021-05-25 |
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Citations (6)
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| CN102696676A (en) * | 2012-05-31 | 2012-10-03 | 莫海仪 | Strong oxidation reduction potential solid disinfectant, method for preparing same and application thereof |
| CN103796515A (en) * | 2011-03-18 | 2014-05-14 | 普里科尔股份有限公司 | Stabilized hypohalous acid solutions |
| CN105441973A (en) * | 2015-12-30 | 2016-03-30 | 福建浩达智能科技有限公司 | Hypochlorous acid preparation method and device |
| CN205443468U (en) * | 2016-03-08 | 2016-08-10 | 内蒙古兰太实业股份有限公司 | Sodium chlorate production and mother liquor processing system |
| EP3312305A1 (en) * | 2016-10-21 | 2018-04-25 | Ultrapure HOCI (Pty) Ltd. | Hypochlorous acid |
| CN110952108A (en) * | 2019-12-23 | 2020-04-03 | 北大荒绿源食品加工有限公司 | Production method for improving stability of hypochlorous acid solution |
-
2020
- 2020-12-31 CN CN202011644519.5A patent/CN112831797A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796515A (en) * | 2011-03-18 | 2014-05-14 | 普里科尔股份有限公司 | Stabilized hypohalous acid solutions |
| CN107439588A (en) * | 2011-03-18 | 2017-12-08 | 瑞尔姆治疗股份有限公司 | Stable hypohalogenous acids solution |
| CN102696676A (en) * | 2012-05-31 | 2012-10-03 | 莫海仪 | Strong oxidation reduction potential solid disinfectant, method for preparing same and application thereof |
| CN105441973A (en) * | 2015-12-30 | 2016-03-30 | 福建浩达智能科技有限公司 | Hypochlorous acid preparation method and device |
| CN205443468U (en) * | 2016-03-08 | 2016-08-10 | 内蒙古兰太实业股份有限公司 | Sodium chlorate production and mother liquor processing system |
| EP3312305A1 (en) * | 2016-10-21 | 2018-04-25 | Ultrapure HOCI (Pty) Ltd. | Hypochlorous acid |
| CN110952108A (en) * | 2019-12-23 | 2020-04-03 | 北大荒绿源食品加工有限公司 | Production method for improving stability of hypochlorous acid solution |
Non-Patent Citations (1)
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| 谭世语等: "《化工工艺学 第4版》", 31 January 2015 * |
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